Finding the Fourth Proportional to 82.45, 123.01 and 73.79

Step by Step Solution

1. Step 1: Write the proportion equation
   82.45 : 123.01 = 73.79 : x
2. Step 2: Convert to fraction form
   82.45/123.01 = 73.79/x
3. Step 3: Cross multiply
   82.45x = 123.01 × 73.79
4. Step 4: Simplify right side
   82.45x = 9,076.91
5. Step 5: Solve for x
   x = 9,076.91/82.45
6. Step 6: Final answer
   x = 110.09